The COPS dissector in Ethereal 0.10.6 through 0.10.8 allows remote attackers to cause a denial of service (infinite loop).
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10801
https://exchange.xforce.ibmcloud.com/vulnerabilities/18999
http://www.securityfocus.com/bid/12326
http://www.redhat.com/support/errata/RHSA-2005-037.html
http://www.redhat.com/support/errata/RHSA-2005-011.html
http://www.redhat.com/archives/fedora-legacy-announce/2006-January/msg00003.html
http://www.mandriva.com/security/advisories?name=MDKSA-2005:013
http://www.gentoo.org/security/en/glsa/glsa-200501-27.xml
http://www.ethereal.com/appnotes/enpa-sa-00017.html